Woman says driver hit and killed her dog on purpose

A Knox County family wants answers after they say they saw someone run over their dog and take off.

http://www.wbir.com/video/2328422541001/39627146001/Woman-says-driver-hit-and-killed-her-dog-on-purposehttp://download.gannett.edgesuite.net/wbir/brightcove/29913744001/29913744001_2328447906001_th-5179f139e4b02706ec1cd336-95694979001.jpg?pubId=29913744001Woman says driver hit and killed her dog on purposeA Knox County family wants answers after they say they saw someone run over their dog and take off.wbirNews02:15